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ZCC5145 替代HT7463

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SWdianzi|  楼主 | 2022-7-29 16:33 | 显示全部楼层 |阅读模式
1 DESCRIPTION
The ZCC5145 is a monolithic, step-down,
switch- mode converter with a built-in power
MOSFET. It achieves a 0.6A peak-output
current over a wide input supply range with
excellent load and line regulation. Current-mode
operation provides a fast transient response and
eases loop stabilization.
Fault condition protections include cycle-by-cycle current limiting
and thermal shutdown.
The ZCC5145 requires a minimal number of
readily-available external components. The
ZCC5145 is available in a TSOT23-6 package.
2 FEATURES
 0.6A Peak Output Current
 0.6Ω Internal Power MOSFET
 Capable to Start Up with Big Output
Capacitor
 Stable with Low-ESR Ceramic Output
Capacitors
 Up to 94% Efficiency
 Fixed 1.2MHz Frequency
 Cycle-by-Cycle Over-Current Protection
 Wide 4.2V-to-45V Operating Input Range
 Output Adjustable from 4.5V to 0.94xVIN
 Available in a SOT23-6 Package

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